Why is Environment.NewLine showing up as square character?

Question

I'm working with a .Net windows application. On my machine, a form displays Environment.NewLine correctly as a new line. However, on a tester's machine, the same Environment.NewLine is being displayed as a square character. On both of our machines, we have our regional settings temporarily set to French, for testing purposes.

How do I set up the tester's machine to display the Environment.Newline properly?

Answer 1

First step - find out what Environment.NewLine actually is on the tester's machine. Perhaps it's somehow \n instead of \r\n, although I find it hard to imagine how...

Just print out Environment.NewLine.Length as a starting point.